event (3 H in 1st 5 flips) = {(H,H,H,T,T),(H,H,T,H,T),(H,H,T,T,H),(H,T,H,H,T),(H,T,H,T,H),(H...
Velocity of the tanker relative to the ocean Vto=[30,15,0) Velocity of the forklift relative to the tanker Vft=[9,7,0] Velocity of the spider relative to the forklift Vsf=[-1,0,5] Velocity of the spider relative to the ocean Vso=Vsf+Vft...
( 1 - 87.5% ) * Io = Io * (1/2)^(t/8) 0.125 = (1/2)^(t/8) (1/2)^3 = (1/2)^(t/8) t / 8 = 3 t = 24 Ans: 24 days
Please read: 圖片參考：https://s.yimg.com/rk/HA00430218/o/600548529.png
http://en.wikipedia.org/wiki/Cross_product Notes The self cross product of a vector is the zero vector, i.e., a × a = 0. The cross product is anticommutative, 圖片參考：http://upload.wikimedia.org/math/5/a/8/5a81334dee39f4dca157b3df3da4834f.png Answer (u + v) x (u - v) = (u + v) x u...
a.b. H0 : μ≦120 H1 : μ > 120 檢定的統計量Z = (130-120) /﹝30 / √89﹞≒ 3.14 查標準常態分配表得P( Z > 3.14 ) = 0.008 即 p值 = 0.008 < 0.05 故拒絕H0,接受H1,即μ > 120 c. 設男生吸菸率為p1,女生吸菸率為p2 H0 : p1 - p2 = 0...
Please read: 圖片參考：http://imgcld.yimg.com/8/n/HA00430218/o/20131127211721.jpg
Please read: 圖片參考：http://imgcld.yimg.com/8/n/HA00430218/o/20131124042308.jpg
圖片參考：http://img4.imageshack.us/img4/596/vca9.png Please read: 圖片參考：http://imgcld.yimg.com/8/n/HA00430218/o/20131127193111.jpg
